#include "widget.h"
#include "ui_widget.h"
#include<QPushButton>
Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    myButton = new QPushButton(this);
    myButton->setText("hello world");

    connect(myButton,&QPushButton::clicked,this,&Widget::handleClick);
}


Widget::~Widget()
{
    delete ui;
}
void Widget::handleClick()
{
    if(myButton->text()==QString("hello world"))
     {
        myButton->setText("hello qt");
    }
    else
      {
         myButton->setText("hello world");
    }
}

